[arin-ppml] "Leasing" of space via non-connectivity providers
On 2/6/2011 7:29 PM, George Bonser wrote:
> I have an upstream announcing>3500 /30 and /32 to me by BGP even though
> they are part of larger aggregates that I hear from no other source
> (aggregates smaller than /24). I called them on Friday about it
> thinking maybe I would give them a "heads up" thinking maybe their
> aggregation was broken. They told me that was intentional. So I am now
> filtering them.
Some policies are strange. To be honest, though, /24 is the standard
unless you're receiving directly from your transit, and while I know
there are quite a few networks (unfortunately some of the largest) which
deaggregate on a massive scale, I would say that most ASNs advertise at
the highest aggregation possible.
I'm personally sad that I'm having to start advertising 5 new /23 routes
as 2 of my ISP customers are multihoming and aren't aggregated (IPv4
didn't allow for any growth when I assigned to them).
Thanks for reminding me to check, though. I screwed a bgp config up.
Currently (and never do this, I just haven't finished fixing it), I flag
to not send routes out (instead of flagging to send them), and a screwup
deaggregated a route.
18.104.22.168/23 4777 2516 3356 8025 - Withdrawn - matching aggregate 22.214.171.124/19 4777 2516 3356 8025
^--- errr, neighbor x.x.x.x send-communities please. :)
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